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/* ------------------------------------------------------------------
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libofa -- the Open Fingerprint Architecture library
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Copyright (C) 2006 MusicIP Corporation
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-------------------------------------------------------------------*/
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// MODULE: Class header for Signal_op
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// DATE CREATED: 1/12/06
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#define __SIGNAL_OP_H 1
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const int MaxSample = 32767;
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const int MinSample = -32768;
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void Load(short* samples, long size, int sRate, bool stereo);
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void CutSignal(double start, double dur);
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void PrepareStereo(long rate, double silTh);
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void PrepareMono(long rate, double silTh);
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void RemoveSilence(double startTh, double endTh);
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void RemoveDCOffset();
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void ConvertSampleRate(long targetSR);
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double GetCrossCorrelation();
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double GetDuration() { return (double) NumBlocks * 1000.0 / (double) Rate; } // In msec
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short* GetBuffer() { return Data; }
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long GetLength() { return NumBlocks; }
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long GetRate() { return Rate; }
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short* Data; // buffer
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long BufSize; // Total size of Data in terms of # of data items (short or float)
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long NumBlocks; // number of data blocks (= number of sample points)
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long Rate; // Sample rate
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int NumChannels; // number of channels
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lib/signal_op.h
